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- Title
不同年龄女性排球运动者膝关节等速肌力测试.
- Authors
宋京林
- Abstract
BACKGROUND: Current research on isokinetic muscle strength of knee joint of volleyball players is mainly reflected in comparing with other sports or analyzing the difference of left and right muscle strength. However, there is no literature about the difference of knee isokinetic muscle strength in female volleyball players at different ages. OBJECTIVE: To measure and compare the isokinetic muscle strength of knee joint between adult and adolescent female volleyball players. METHODS: The left and right knee joint muscle strengths at different angular velocities (60 (°)/s, 5 times, 240 (°)/s, 25 times) in flexion and extension modes of female volleyball adults (n=62, average age of 19.0 years)and adolescents (n=66, average age of 15.4 years) were detected using IsoMed 2000 isokinetic muscle strength tester made in Germany. RESULTS AND CONCLUSION: (1) Knee peak torque: the absolute force of the left and right extensors of the knee joint at angular velocity of 60 (°)/s, and the left explosive force at angular velocity of 240 (°)/s in the adult group was significantly less than that in the adolescent group (P < 0.05). Relative peak torque of knee joint: the relative peak torque of the left and right extensors of the knee joint at angular velocity of 60 (°)/s, and the left relative peak torque at angular velocity of 240 (°)/s in the adult group was significantly higher than that in the adolescent group (P < 0.05). (2) H/Q: the absolute force of H/Q of the left side in the adult group was less than that in the adolescent group 13.7% (P < 0.05). (3) The ipsilateral muscle: there was no difference between two groups (P > 0.05). (4) Muscular endurance: the muscular endurance of the left and right flexors and extensors in the adult group was significantly higher than that in the adolescent group (P < 0.05). (5) Maximal working capacity and power: the absolute power of left and right extensors in the adult group was significantly higher than that in the adolescent group (P < 0.05). The absolute power of the left and right extensors in the adult group was significantly higher than that in the adolescent group (P < 0.05). (6) These results indicate that the absolute and explosive forces of knee extensor, muscle endurance of flexor and extensor, maximum working capacity of absolute force of extensor and maximum power of explosive force of adult female volleyball players are superior to the adolescent volleyball players. The H/Q value of adult and adolescent groups is less than 0.6, and the H/Q value of left absolute force of knee joint in the adult group is smaller than that in the adolescent group. It is suggested that the absolute force and explosive force of knee flexors should be increased in adult and adolescent groups, and increasing H/Q value can prevent sports injury.
- Publication
Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu, 2019, Vol 23, Issue 27, p4321
- ISSN
2095-4344
- Publication type
Article
- DOI
10.3969/j.issn.2095-4344.1379